About: http://webisa.webdatacommons.org/334884150

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	It is common that the collimator lens 6 is configured with a plurality of lenses including a concave lens for reducing chromatic aberration, but the collimator lens may be one a spherical lens.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr